United Technologies Corporation

Raytheon Technologies Corporation

Daniel J Wright

Gary E Georgeson

James J Troy

Scott Wesley Lea

Chung Y Wu

Eric Fromerth

Brian J Schwartz

Daniel F Grady

A forming tool for forming leading edges of turbine blades is disclosed. In various embodiments, a forming tool may comprise a cylindrically-shaped body having a notch around the circumference of the cylindrically-shaped body. The notch may be positioned perpendicularly to a center axis of the cylindrically-shaped body. Further, the notch may have a notch contour with an upper notch contour and a lower notch contour, and where the notch contour is a relief of a selected turbine blade leading edge. The forming tool may be a grinding tool or a cutting tool. Moreover, a forming process may comprise forming, by a forming tool, a first portion of a turbine blade leading edge with a rough edge result, and forming, by a milling cutter, a second portion of the turbine blade leading edge with a rough edge result.

Forming tool for leading edge of turbine blades

A process for point superabrasive machining of a nickel based material comprising the steps of providing a tool having a grinding surface coated with a superabrasive material, orienting the tool relative to a surface of the nickel based material to be machined so that there is point contact between the surface to be machined and the grinding surface, and forming a part by removing material at the point contract by rotating the tool. The tool comprises an enlarged portion, a tip portion, and a first shaft portion extending from the enlarged portion to the tip portion, the first shaft portion and the tip portion being coated with an abrasive material, and the first shaft portion having a constant diameter.

Point superabrasive machining of nickel alloys

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Glastonbury, CT, United States of America

Daniel J Wright